What is Lester Sielski's NPI number?

Lester Sielski's National Provider Identifier (NPI) is 1669424081, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Lester Sielski's specialty?

Lester Sielski is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Lester Sielski located?

Lester Sielski's practice location on file with NPPES is 4239 Maple Rd, Amherst, NY 14226-1039.

What is Lester Sielski's phone number?

The practice phone number listed in the NPPES registry for Lester Sielski is (716) 835-2984.

Is Lester Sielski's NPI active?

Yes — Lester Sielski's NPI (1669424081) is active in the NPPES registry as of the last update on 2021-11-05.

IndividualActive

Lester Sielski, M.D

NPI 1669424081 · Internal Medicine Physician · Amherst, NY

Lester Sielski, M.D is a Internal Medicine Physician provider in Amherst, NY (NPI 1669424081).

Provider details

NPI number: 1669424081
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: M.D
Sex: Male
License: 106124 (NY)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense 106124 (NY)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

4239 Maple Rd

Amherst, NY 14226-1039

Phone: (716) 835-2984

Fax: (716) 835-1470

Street-level locationGet directions

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Mailing address